[tex]\Large\mathsf\displaystyle{} {2x}^{2} + 3x + 25 = 0 \\\\ \Large\mathsf\displaystyle{}\begin{cases}a = 2 \\ b = 3 \\ c = 25\end{cases} \\\\ \Large\mathsf\displaystyle{}\Delta = {3}^{2} - 4\cdot2\cdot25 \\ \Large\mathsf\displaystyle{}\Delta = 9 - 4\cdot2\cdot25 \\ \Large\mathsf\displaystyle{}\Delta = 9 - 200 \\\Large\mathsf\displaystyle{} \Delta = - 191[/tex]

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